PerkinElmer RETICON LD3500 Series Instruction Manual Download | Manualshive

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PerkinElmer

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Optoelectronics

4 Camera Operation Overview

The camera operation is a 2 stage process that consists of exposure and data
output transfer. This process operates the same regardless of mode. The only
differences are the events that initiate exposure and data output transfer.

The LD3500 series cameras offer multiple exposure modes for maximum
flexibility to capture image data in a variety of applications.

4.1 Camera Exposure Modes (Camera Link Model)

The following exposure modes are provided:

•

Master Mode

•

Slave Mode

The camera modes are selected selected by the serial connection on the Camera
Link connector. The camera communicates at 9600 Baud with 8 data bits, 1 start
bit, 1 stop bit, and no parity bits. Refer to PerkinElmer Applications Note ANP-
206.01A-8/2001 LD3500 Serial Command Language for more details.

4.1.1 Data Output

The digital video output is identical in all modes of operation. The digital video
is output together with two synchronization signals: Camera Clock (CCLK), and
Line Enable (LEN). The LEN signal brackets the valid digital video that is output
in synchronization with the CCLK. LEN is output on the LVAL signal line and
CCLK is output on the STRB signal line in accordance with the Camera Link
specification.

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Summary of Contents for RETICON LD3500 Series

Page 1: ...I N S T R U C T I O N M A N U A L Lighting Imaging Telecom Imaging Product Line PerkinElmer Optoelectronics 2175 Mission College Blvd Santa Clara CA 95054 Tel 408 565 0830 Toll Free 800 775 OPTO 6786 Fax 408 565 0703 E Mail opto perkinelmer com http www perkinelmer com 055 0460 MAN ...

Page 2: ...ation from Seller If a returned product is found to be out of warranty or found to be within the applicable specification Buyer shall pay an evaluation and handling charge in addition to possible repair and or replacement costs Seller will notify Buyer of the amount of said evaluation and handling charges at the time the return authorization is issued Seller will inform Buyer of related repair and...

Page 3: ... Input 8 4 2 2 Digital Output 8 4 2 3 Master Mode 8 4 2 4 Slave Mode 9 4 2 4 1 Exposure Control 9 4 2 5 Line Period Limits 10 5 INSTALLATION GUIDELINES 11 5 1 OPTICAL INTERFACING 11 5 1 1 Estimating the Working Distance 12 5 2 LENS ATTACHMENT 13 5 3 MOUNTING THE CAMERA 13 5 4 CONNECTING POWER 14 5 4 1 Power Supply Requirements 14 5 4 2 Power Supply Connector 14 5 5 INTERFACE CABLING 15 5 6 FRAME G...

Page 4: ... Environment 3 Figure 3 Master Mode Timing Camera Link Model 6 Figure 4 Slave Mode Timing Camera Link Model 7 Figure 5 Master Mode Timing LVDS Model 8 Figure 6 Slave Mode Timing LVDS Model 9 Figure 7 Imaging Geometry Definition 11 Figure 8 LD3500 Camera Front Face Attachment Point Definition 13 Figure 9 LD3500 Series Camera Mounting Hole Location 14 Figure 10 Test Target 19 Figure 11 Test Target P...

Page 5: ...v PerkinElmer Optoelectronics ...

Page 6: ......

Page 7: ...eries photodiode linear array with 14µm pixel pitch at a 14 µm aperture This provides a 48dB dynamic range over a spectral range of 350 to 1000 nm All camera control functions are selected by the serial connection on the Camera Link model or automatically detected on the LVDS model Digital I O is provided as differential RS 644 for all camera models 1 4 Functional Description The LD3500 series cam...

Page 8: ...PerkinElmer Optoelectronics 2 Figure 1 LD3500 Series Camera Block Diagram ...

Page 9: ...ics 2 Typical Installation Figure 2 illustrates a typical machine vision installation showing the major system components and defines the coordinate system used throughout this manual Figure 2 Typical Machine Vision Environment ...

Page 10: ... list should contain the following 1 LD3500 camera in static resistant envelope with unbroken seal 2 Users Manual 3 2 Customer Supplied Components The following components not supplied with the camera are required for installation and operation of the camera in your particular machine vision environment 1 Camera Lens Extender Available by contacting PerkinElmer 2 Camera mounting hardware 3 PC with...

Page 11: ...ve Mode The camera modes are selected selected by the serial connection on the Camera Link connector The camera communicates at 9600 Baud with 8 data bits 1 start bit 1 stop bit and no parity bits Refer to PerkinElmer Applications Note ANP 206 01A 8 2001 LD3500 Serial Command Language for more details 4 1 1 Data Output The digital video output is identical in all modes of operation The digital vid...

Page 12: ...ith the LT signal the LR signal activates an electronic shutter when held low For slave mode timing see Figure 4 4 1 3 1 Exposure Control Slave mode camera exposure is determined by the LR and LT signals The exposure time is defined as the time between the rising edge of the LR signal and the rising edge of the LT signal The LR signal must be held active low ON for a minimum of 6 clock cycles and ...

Page 13: ...ec LD3541 512 40 MHz 68 728 L sec 14 6 µsec LD3542 1024 40 MHz 36 563 L sec 27 4 µsec LD3543 2048 40 MHz 18 885 L Sec 53 0 µsec 4 2 Camera Exposure Modes LVDS Model The following exposure modes are provided Master Mode Slave Mode The camera mode is automatically detected on the LVDS model Note The camera defaults to master mode on power up If an external LT signal is detected the camera will go in...

Page 14: ...k rate 4 2 2 Digital Output The digital video is output together with two synchronization signals Camera Clock CCLK and Line Enable LEN The LEN signal brackets the valid digital video that is output in synchronization with the CCLK Note 1 Since the camera electronics stores a video line in memory prior to sending it to the output when operating in the slave mode the first line output after the fir...

Page 15: ...he exposure time is defined as either a the time between successive falling edges of the LT signal or b the time when the LT signal is held high To select the exposure control mode described in a the user must hold LR in a high ON state or leave these pins unconnected To select the exposure control mode described in b the user must hold the LR signal in a low OFF state In case b the LT signal must...

Page 16: ...odel Pixels Clock Max Line Scan Rate Min Line Scan Period LD3521 512 20 MHz 34 013 L sec 29 4 µsec LD3522 1024 20 MHz 18 181 L sec 55 0µsec LD3523 2048 20 MHz 9 416 L sec 106 2 µsec LD3541 512 40 MHz 68 027 L sec 14 7 µsec LD3542 1024 40 MHz 36 363 L sec 27 5 µsec LD3543 2048 40 MHz 18 832 L Sec 53 1 µsec ...

Page 17: ...g The LD3500 series cameras require properly chosen lenses and lens extenders to allow the imaging of the chosen web width onto the sensor array Table 3 shows the array length and number of pixels on the array for each camera model Table 3 Camera Sensor Array Lengths Camera Model Active Array Length AL Active Pixels LD3521 0 28 7 168 mm 512 LC3522 0 56 14 336 mm 1024 LC3523 1 13 28 672 mm 2048 LC3...

Page 18: ...ace distance f focal length of lens AL Length of sensor array X Web with imaged M magnification WD working distance Since the actual results will vary from these idealized estimates sufficient adjustment capability is required Example Assuming that an 80 mm lens has been chosen for an LD35XX camera and is installed without an extender and that it is desired to image a 36 882 mm web The following c...

Page 19: ...equired object width X the camera array size and the selected lens and extension See section 1 for some general guidelines for physically locating your camera for your application Mounting the camera requires the supplied mounting plate or customer supplied adapter Figure 8 shows the location of the mounting holes for attaching the camera to the mounting surface specifies the mounting hole thread ...

Page 20: ...ble code requirements 5 4 1 Power Supply Requirements The power supply must provide at the camera 12 to 24 VDC 6 W total input power 5 4 2 Power Supply Connector The LD3500 camera receives its power from a 6 pin Hirose HR 10A circular connector The power connector is common to both models Table 4 Power Connector Pin Assignment Signal Pin Description 12 24VDC 1 Input Voltage 12 24VDC 2 Input Voltag...

Page 21: ...ions Table 5 Camera Link Model Connector Pin Assignment Signal Pin Description SHIELD 1 Inner Shield X0 2 Camera Link Data X1 3 Camera Link Data X2 4 Camera Link Data Xclk 5 Camera Link Clock X3 6 Camera Link Data SerTC 7 Camera Link Serial TC SerTFG 8 Camera Link Serial TFG CC1 9 Line Enable CC2 10 Line Reset CC3 11 Not Used CC4 12 Not Used SHIELD 13 Inner Shield SHIELD 14 Inner Shield X0 15 Came...

Page 22: ...12 Camera Data D3 13 Camera Data D2 14 Camera Data D1 15 Camera Data D0 16 Camera Data LSB CCLK 17 Camera Clock LEN 18 Line Enable N C 19 No Connection GAIN0 20 Gain Select LSB SHIELD 21 Inner Shield GAIN1 22 Gain Select MSB MCLK 23 Master Clock LR 24 Line Reset LT 25 External Line Transfer N C 26 No Connection D7 27 Camera Data MSB D6 28 Camera Data D5 29 Camera Data D4 30 Camera Data D3 31 Camer...

Page 23: ...ensor array 2 Camera exposure mode Slave modes require external input signals See section 4 3 The frame grabber must be able to accept differential digital video either parallel LVDS or Camera Link base configuration Contact PerkinElmer for a list of recommended frame grabber vendors 5 7 Cleaning the Sensor Should the sensor become dirty the user can clean the face taking care to use Isopropyl Alc...

Page 24: ...emented an LVDS or Camera Link interface to accommodate the external input signals required for Trigger and Slave modes and the external clock specific to your application See section 4 Determined the required cable lengths 6 2 Installing the Camera The following is a suggested sequence of steps to physically install the camera 1 Contact PerkinElmer for recommendations on the frame grabber interfa...

Page 25: ...be placed on any one of the 4 sides of the camera housing Be sure to use 3 screws when employing the tripod mount 6 3 Activating the Camera Place the test target within the cameras projected field of view and turn on the illumination source Figure 10 Test Target Orient the test target such that the black and white Focusing Bars are directly below the camera and are aligned with the sensor array X ...

Page 26: ...s 6 4 2 Camera Operating Mode Selection LVDS Model The camera operating mode for the LVDS model camera is automatically detected If the external control input signals of LT LR and MCLK are left open the camera will enter Master mode The combination of input signals that are present will specify which of the slave modes the LD3500 camera is in Refer to section 4 2 2 Slave Mode LVDS model for detail...

Page 27: ...ain LVDS Model Video gain is set by the control lines GAIN0 and GAIN1 present on the LVDS connector The video gain may be adjusted while the camera is operating and does not require camera power cycling for gain changes to take effect This model allows a gain adjustment range of 0dB to 18dB in steps of 6dB Table 9 Video Gain Selection LVDS Model GAIN0 GAIN1 Camera Gain Value dB HIGH LOW 0 0 LOW HI...

Page 28: ...ity such that some of the darker gray shade steps are no longer discernable 4 Increase the video gain of the camera and verify that the gray scale steps reappear 5 Return the video gain to the default setting of 0dB 6 5 Verifying Slave Mode Operation Note In order to verify the Slave Mode you must have made provisions for the required external signals in the frame grabber interface as described in...

Page 29: ...or unambiguous detection of the feature of size D The effective y resolution is defined by the static spatial resolution plus an effective y dimension elongation that is determined by the target velocity and time of exposure The choice of D must satisfy the following pixels of X D yeff 2 Once D has been chosen then the target velocity is determined by Period Line Min y V eff web The following is a...

Page 30: ...nce the maximum line rate corresponding to the minimum line period from Table 1 is sec 9 105 µ the web velocity to assure contiguous y samples must be such that the web moves 0 010 during the line period min 1 472 min sec 60 12 sec 42 94 sec 42 94 sec 10 9 105 010 0 6 ft ft Vweb The required exposure exp t is then computed as follows sec 10 8 12 42 94 2048 18 2048 010 6 exp web eff V pixels of X p...

Page 31: ...ble connections are securely attached Blurry Video 1 Make sure that the camera has been properly focused as described in section 6 3 2 Make sure that the lens is clean 3 Make sure that there is adequate illumination Operating Mode Does Not Change 1 Power down and restart the camera for mode changes to take effect 8 2 RMA Return Material Authorization Products returned for repair warranty or non wa...

Page 32: ... 0703 Germany PerkinElmer Optoelectronics GmbH Wenzel Jaksch Str 31 D 65199 Wiesbaden Germany Phone 49 611 492 570 Fax 49 611 492 165 Japan PerkinElmer Optoelectronics NEopt 18F Parale Mitsui Building 8 Higashida Cho Kawasaki Ku Kawasaki Shi Kanagawa Ken 210 0005 Japan Phone 81 44 200 9170 Fax 81 44 200 9160 www neopt co jp Singapore 47 Ayer Rajah Crescent 06 12 Singapore 139947 Phone 65 770 4925 ...

Page 33: ...nvironments often encountered in industrial applications RS 644 differential line drivers and receivers are available from various manufacturers An example of a suitable drivers is National Semiconductor DS90LV047 and an example of a suitable receiver is National Semiconductor DS90LV048 Figure 11 shows typical RS 644 input and output circuit configurations with the type of circuit that should be u...

Page 34: ...PerkinElmer Optoelectronics 28 APPENDIX B Front Plate Detailed Mechanical Drawing ...

Page 35: ...idelines 32 Interface Cabling 20 Introduction 6 L LEN Line Enable 10 13 Lens Attachment 18 Line Period Limits Camera Link 12 LVDS 15 LR Line Reset 11 14 LT Line Transfer 11 14 LVDS Low Voltage Differential Signaling 6 32 M Master Mode Camera Link 11 LVDS 13 Master Mode Timing Camera Link 11 LVDS 13 MCLK Master Clock 14 O Operating Mode Selection Camera Link 25 LVDS 25 Optical Interfacing 16 P Powe...

Page 36: ...PerkinElmer Optoelectronics 30 W Warranty ii Working Distance Estimating 17 ...

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